1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alenkasestr [34]
2 years ago
11

Manuela makes $21 in commissions over the first three hours that she worked selling magazines. How many dollars must she make du

ring the fourth hour to average $8 an hour for the full four hours
Mathematics
2 answers:
eduard2 years ago
8 0

$11

8 x 4 = $32 total for 4 hours

$32 - $21 = $11
atroni [7]2 years ago
7 0

Answer: Manuela must make $11 dollars during the fourth hour

Step-by-step explanation:

In order to calculate the amount of dollars for the fourth hour, you have to calculate the amount of dollars she needs to make in the full four hours:

The average is the amount of dollars earned in 4 hours between the 4 hours. Let <em>A </em>be the average and <em>d </em>be the amount of dollars

<em>A</em>= <em>d</em>/4

A= $8. Replacing A in the expression:

8=d/4

Multiplying by 4 each side:

d=32

Now, if she must make $32 in four hours to average $8 but she already earned $21 in three hours then in the last hour she must make:

$32 - $21 = $11

You might be interested in
Suppose ABC added a new point, D. If the coordinates of D were (5, 2), what would be the coordinates of D' have to be if it foll
atroni [7]

Answer:

C the coordinates are just fliped since It was flipped on the y- axis

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
The southward translation of the rose garden is along which axis? What integer represents a change of four yards south?
Sphinxa [80]

Going south means you're going in the negative direction along the y axis

Going 4 yards south would be represented as -4 on the y axis number line (this is the vertical number line)

3 0
3 years ago
Mia's office recycled a total of 9 pounds of paper over 3 weeks. After 7 weeks, how many pounds of paper will Mia's office have
tankabanditka [31]

Answer:

21

Step-by-step explanation:

average 9 pounds per three weeks

divide 9 in 3 three weeks

3 pounds per week

7 times 3 is 21

5 0
2 years ago
Divide these polynomial a (27x 4 - 18x 3 + 9x 2) ÷ 3x
Blizzard [7]
The answer is 9x^3-6x^2+3x
5 0
3 years ago
What is 2(x + 4)=2(-8- x) - 2x
Maru [420]

Answer:

You want to solve for x, the first thing you need to do is distribute

The 2 through the x+4 then the other 2 through the -8-x

2(x+4)= 2x+8

2(-8-x)= -16-2x

2x+8=-16-2x-2x (combine like terms on the right side)

2x+8=-16-4x (now subtract 8 from each side)

2x=-24-4x (8-8=0, -16-8=-24) (now add 4x to each side)

6x=-24 (-4x+4x=0, 2x+4x=6x), (divide each side by 6)

x=-4 (6/6=1, -24/6=-4)

x=-4

Hope this helps ;)

6 0
3 years ago
Other questions:
  • If f(a) = b, find f^-1(b)
    12·1 answer
  • 1²+3²+4²+.......+(2n-2)²= ⅓n(2n-1)(2n+1)
    14·1 answer
  • 1.95(6.2-3x)-4.81=18.46
    14·1 answer
  • In the expression 73 – 4•3+8, the first operation is...? A.an exponent
    9·1 answer
  • The product of x and 7
    6·2 answers
  • What is the value x in 8+6y=9
    14·1 answer
  • Sorry about the x on 1 of the answers but can someone help?
    11·2 answers
  • Samantha surveyed 500 of the students in her school about their favorite color.
    9·1 answer
  • What is 5/16 x -2 x -4 x -4/5
    5·2 answers
  • Which expression shows the distance on the number line between −7 and 16?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!